Daylily (Hemerocallis 'Happy Days') in the Daylilies Database

Data specific to Daylilies (Edit)
AHS link: AHS Daylily Cultivar Info
Hybridizer: Russell
Year of Registration or Introduction: 1950
Ploidy: Diploid
Foliage type: Evergreen
Scape height: 30 inches
Bloom time: Early midseason
Plant Traits: Diurnal
Bloom Traits: Bitone or Reverse Bitone
Bloom Form: Single
Color description: YL2: Yellow light with markings, bitones, or polychromes

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Flowers: Showy
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division

Discussion Threads about this plant
Thread Title Last Reply Replies
Observations of Dormancy by admmad Nov 7, 2019 1:39 PM 27
October 2019 blooms by profesora Oct 31, 2019 4:33 PM 256
Weather In Your Garden ~ Fall 2019 by Char Nov 11, 2019 11:27 AM 610
OT ~ The Porch Swing ~ Fall 2019 by Char Nov 11, 2019 9:54 AM 833
Go south of the equator young daylily. by Gleni Nov 10, 2019 7:51 AM 259
Daylily seeds by MochaJoe Sep 16, 2019 8:11 AM 23
Show us your PODS by petruske Oct 25, 2019 10:54 AM 45
September 2019 Daylily Blooms by Charlemagne Oct 4, 2019 7:15 AM 436
August 2019 Daylily Blooms by Hazelcrestmikeb Sep 4, 2019 7:37 AM 489
July 2019 Blooms by mantisOH Aug 13, 2019 7:55 AM 713
OT ~ The Porch Swing ~ Summer 2019 (CLOSED) by Char Sep 23, 2019 4:10 AM 1,706
Weather In Your Garden ~ Summer 2019 (CLOSED) by Char Sep 23, 2019 4:22 AM 1,216
June 2019 blooms by Jillz Jul 3, 2019 1:31 PM 632
June 2019 Seedlings by beckygardener Jul 2, 2019 4:45 AM 440
What is wrong with this daylily? by mistyfog May 31, 2019 2:11 PM 11
Clump Shots 2019 by Seedfork Nov 7, 2019 5:43 PM 563
How Would You Rate This LA Seller? by bloominholes2fill May 11, 2019 2:02 PM 34
May 2019 blooms by Diggerofdirt Jun 1, 2019 10:15 PM 372
May 2019 seedlings by spunky1 Jun 1, 2019 7:11 PM 180
Weather In Your Garden ~ Spring 2019 (CLOSED) by Char Jun 21, 2019 4:24 AM 1,145

« Add a new plant to the database

» Search the Daylilies Database: by characteristics or by cultivar name

« See the general plant entry for Daylilies (Hemerocallis)

« Visit the Daylilies forum

» Read our note about daylily rust scores

« The Daylilies Database Front Page

« The Plants Database Front Page

Today's site banner is by luvsgrtdanes and is called ""

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.